#### How to Find the Top 10 Most Common Values in a Column with Millions of R ows

To find the top 10 most common values in a given column with millions of rows, you can use a SQL query.

#### Problem

```Given a table with millions of rows, write a SQL query to find the top 10 most common values in a given column.
Example input:
| id | value |
|----|-------|
| 1  | 100   |
| 2  | 200   |
| 3  | 100   |
| 4  | 300   |
| 5  | 100   |
| 6  | 200   |
| 7  | 400   |
Example output:
| value | count |
|-------|-------|
| 100   | 3     |
| 200   | 2     |
| 300   | 1     |
| 400   | 1     |```

#### Solution

This solution is in SQL. Our A.I. can create solutions in multiple languages.
```SELECT value, COUNT(*) AS count
FROM table
GROUP BY value
ORDER BY count DESC
LIMIT 10;

/*

The solution above is optimal because it uses the GROUP BY and ORDER BY clauses to group the values and order them by count.
The LIMIT clause is used to limit the number of rows returned.

*/```

A.I. Evaluation of the Solution

The candidate's solution is optimal and demonstrates a complete understanding of the problem. The candidate has used the GROUP BY and ORDER BY clauses to group the values and order them by count, and the LIMIT clause to limit the number of rows returned.

Evaluated at: 2022-11-20 04:16:01